6. At zero direct labor hours in a ?exible budget graph, the total budgeted cost lineintersects the vertical axis at $30,000. At 10,000 direct labor hours, a horizontalline drawn from the total budgeted cost line intersects the vertical axis at $90,000.Fixed and variable costs may be expressed as: a. $30,000 fixed plus $6 per direct labor hour variable. b. $30,000 fixed plus $9 per direct labor hour variable. c. $60,000 fixed plus $3 per direct labor hour variable. (1. $60,000 fixed plus $6 per direct labor hour variable.